Footwear sole



FIG. 1 is a side elevational view of a design element of a footwear sole showing the new design.

The solid lines comprise the claimed design and the claimed design is not limited to the specific location on or in the sole or a particular size in relationship to the sole. The broken lines adjacent to the claimed design element represent elements that are not a part of the claimed design. The broken lines showing the remainder of a sole are for illustrative purposes only and form no part of the claimed design. 

The ornamental design element for a footwear sole, as shown and described. 